Endless belt valve grinder

Details Endless belt valve grinder Endless belt valve grinder

1988-04-15

1991-01-29

Rose, Robert A.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51105VG, 51217T, 51237R, B24B 1504, B24B 2102

Patent

active

049877011

ABSTRACT:
An endless belt valve grinder for refacing valve heads used in internal combustion engines. Grinding is done by rotating the valve face against a moving endless abrasive belt supported on a backing wheel and driven by a driving wheel. The workhead or chuck assembly for holding the valve during grinding is automatically pneumatically actuated for gripping and releasing the valve stem. Air pressure is selected and regulated and a stop is provided to adjust the gripping force on the valve stem.

REFERENCES:
patent: 2113387 (1938-04-01), Silven
patent: 2120198 (1938-06-01), Blazek
patent: 2127748 (1938-08-01), Miller
patent: 2136188 (1938-11-01), Gagne
patent: 2413678 (1947-01-01), Beverlin
patent: 2606767 (1952-08-01), Preston
patent: 2778163 (1957-01-01), Flygere
patent: 2802310 (1957-08-01), Chaplik
patent: 4590711 (1986-05-01), Sollami
patent: 4662116 (1987-05-01), Erani
Standard Valve Refacer (K403 Series), 3/87, pp. 1 and 2.
Heavy Duty Valve Refacer Bulletin No. HDV-87 (Model No. 500HM2) 9/87, pp. 1-4.

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